There are variations on the lyrics, some of which date from Behan's different versions. For example, the last line can be sung as either "... cowards who sold out the patriot game" or "... Quislings who sold out the patriot game". The version by the Bluebells altered many of the lyrics to criticise "the old men who pay for the patriot game", implying that young volunteers are manipulated into dying for a cause that they believe to be just. The Clancy Brothers chose not to sing the verses which sanctioned the murders of Irish police officers or which criticised Éamon de Valera, a choice which Behan took exception to:
This Ireland of mine has for long been half free, Six counties are under John Bull's tyranny. And still de Valera is greatly to blame For shirking his part in the patriot game.
I don't mind a bit if I shoot down police They are lackeys for war never guardians of peace And yet at deserters I'm never let aim The rebels who sold out the patriot game
When Liam Clancy sang the song with the Clancy Brothers, he did include the John Bull verse, but rewrote the second half of it as "So I gave up my boyhood to drill and to train, to play my own part in the patriot game". A handful of other artists have since then used those new lyrics in their covers. Most musicians who sang the verse as written by Behan still adjusted the lyric about de Valera and sang it in a more general manner as "the leaders". The verse about police officers is very commonly omitted, even by nationalist bands such as the Irish Brigade and the Wolfe Tones, although Harvey Andrews included it unaltered.
Appropriation
Like Behan, Bob Dylan used the melody of "The Merry Month of May" for his own song "With God on Our Side". Behan criticised Dylan publicly by claiming the melody as an original composition. He was annoyed because the first two verses of Dylan's song were a parody of his own song. Behan took the view that the provenance of Dylan's entire body of work must be questioned. Mike Evans writes that "legend has it" that, during an early tour of the UK by Bob Dylan, Behan rang him at his hotel room with an uncompromising tirade. When Bob Dylan suggested that "My lawyers can speak with your lawyers", Behan replied, "I've got two lawyers, and they're on the end of my wrists."
Popular culture
American filmmaker Arthur MacCaig named his 1979 documentary after the song, a portrayal of Irish history from a Republican perspective. The title was also used as the title of a 1986 book The Patriot Game by Canadian authorPeter Brimelow. The book evokes the same cynicism about nationalism, but in a Canadian context. Tom Clancy's 1987 novel Patriot Games and the 1992 film based on the novel are named for the song. The song features heavily in Martin McDonagh's play The Lieutenant of Inishmore, where it is used to comment on the character's misunderstanding of IRA splinter groups. British band Dire Straits' chart hitBrothers in Arms refers strongly to Behan's song both musically and in subject, and Damien Dempsey's "Colony" also references the title.